Labalan, B. (2006). Mt Bulusan erupts anew, but spews only steam ash. Philippine Daily Inquirer.
Chicagoスタイル(17版)引用形式Labalan, Bobby. "Mt Bulusan Erupts Anew, but Spews Only Steam Ash." Philippine Daily Inquirer 2006.
MLA(9版)引用形式Labalan, Bobby. "Mt Bulusan Erupts Anew, but Spews Only Steam Ash." Philippine Daily Inquirer, 2006.
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